package com.gouldzd.controller;

import com.alibaba.dubbo.config.annotation.Reference;
import com.gouldzd.constant.MessageConstant;
import com.gouldzd.entity.Result;
import com.gouldzd.service.MemberService;
import com.gouldzd.service.ReportService;
import com.gouldzd.service.SetMealService;
import net.sf.jasperreports.engine.JasperCompileManager;
import net.sf.jasperreports.engine.JasperExportManager;
import net.sf.jasperreports.engine.JasperFillManager;
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.engine.data.JRBeanCollectionDataSource;
import org.apache.poi.xssf.usermodel.XSSFCell;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.FileInputStream;
import java.io.OutputStream;
import java.math.BigDecimal;
import java.text.SimpleDateFormat;
import java.util.*;

/*
 * @Author zhangdan
 * @Description //TODO 图形报表操作管理
 * @Date 9:56 2020/4/28
 * @Param 
 * @return 
 **/
@RestController
@RequestMapping("/report")
public class ReportController {

    @Reference
    private MemberService memberService;

    @Reference
    private SetMealService setMealService;

    @Reference
    private ReportService reportService;

    //会员数量折线图数据
    @RequestMapping("/getMemberReport")
    public Result getMemberReport(){

        //根据页面数据格式集合返回map集合,用于存储数据
        Map<String,Object> map = new HashMap<>();
        //list集合用于存储月份
        List<String> months = new ArrayList<>();

        //获取日历对象,就是当前时间
        Calendar calendar = Calendar.getInstance();
        //计算过去过去一年的12个月
        calendar.add(Calendar.MONTH,-12);//获取当前月时间往前推12个月
        //将每个月份存入months集合中
        for (int i = 0; i < 12; i++) {
            calendar.add(Calendar.MONTH,1);//获得当前时间往后推一个月日期
            Date date = calendar.getTime();//获取往后推一个月的日期
            //将日期格式化并存入集合中
            months.add(new SimpleDateFormat("yyyy.MM").format(date));
        }

        //将12个月份存入map集合中
        map.put("months",months);

        //获取每个月份对应的数据
        List<Integer> memberCount = memberService.findMemberCountByMonths(months);
        //将每个月的数据存入map集合中
        map.put("memberCount",memberCount);

        return new Result(true, MessageConstant.GET_MEMBER_NUMBER_REPORT_SUCCESS,map);
    }

    //套餐预约占比饼形图
    @RequestMapping("/getSetmealReport")
    public Result getSetmealReport(){

        //根据页面数据格式集合返回map集合,用于存储数据
        Map<String,Object> data = new HashMap<>();

        try {
            //获取套餐数据(套餐名字,预约的数量)
            List<Map<String,Object>> setmealCount = setMealService.findSetmealCount();
            //将查询的数据存入map集合中
            data.put("setmealCount",setmealCount);

            //list集合用于存储套餐名字
            List<String> setmealNames = new ArrayList<>();
            //遍历查询出的数据setmealCount集合
            for (Map<String, Object> map : setmealCount) {
                String name = (String) map.get("name");//获取套餐名称
                //将名字存入list集合中
                setmealNames.add(name);
            }
            //将list集合存入map集合中
            data.put("setmealNames",setmealNames);

            return new Result(true, MessageConstant.GET_SETMEAL_COUNT_REPORT_SUCCESS,data);
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_SETMEAL_COUNT_REPORT_FAIL);
        }
    }

    //运营数据统计
    @RequestMapping("/getBusinessReportData")
    public Result getBusinessReportData(){
        try {
            Map<String,Object> data = reportService.getBusinessReportData();
            return new Result(true,MessageConstant.GET_BUSINESS_REPORT_SUCCESS,data);
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false,MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }
    }

    //导出运营数据Excel文件
    @RequestMapping("/exportBusinessReport")
    public Result exportBusinessReport(HttpServletRequest request, HttpServletResponse response){

        try {
            Map<String,Object> result = reportService.getBusinessReportData();
            //取出返回结果数据，准备将报表数据写入到Excel文件中
            String reportDate = (String) result.get("reportDate");
            Integer todayNewMember = (Integer) result.get("todayNewMember");
            Integer totalMember = (Integer) result.get("totalMember");
            Integer thisWeekNewMember = (Integer) result.get("thisWeekNewMember");
            Integer thisMonthNewMember = (Integer) result.get("thisMonthNewMember");
            Integer todayOrderNumber = (Integer) result.get("todayOrderNumber");
            Integer thisWeekOrderNumber = (Integer) result.get("thisWeekOrderNumber");
            Integer thisMonthOrderNumber = (Integer) result.get("thisMonthOrderNumber");
            Integer todayVisitsNumber = (Integer) result.get("todayVisitsNumber");
            Integer thisWeekVisitsNumber = (Integer) result.get("thisWeekVisitsNumber");
            Integer thisMonthVisitsNumber = (Integer) result.get("thisMonthVisitsNumber");

            List<Map> hotSetmeal = (List<Map>) result.get("hotSetmeal");

            //获取模板文件的真实路径
            String filePath = request.getSession().getServletContext().getRealPath("template") + File.separator + "report_template.xlsx";

            //基于提供的Excel模板文件在内存中创建一个Excel表格对象
            XSSFWorkbook excel = new XSSFWorkbook(new FileInputStream(new File(filePath)));
            //获取第一个工作表
            XSSFSheet sheet = excel.getSheetAt(0);

            //获取第三行
            XSSFRow row = sheet.getRow(2);
            //获取第六个单元格
            XSSFCell cell = row.getCell(5);
            cell.setCellValue(reportDate);//日期

            row = sheet.getRow(4);
            row.getCell(5).setCellValue(todayNewMember);//新增会员数（本日）
            row.getCell(7).setCellValue(totalMember);//总会员数

            row = sheet.getRow(5);
            row.getCell(5).setCellValue(thisWeekNewMember);//本周新增会员数
            row.getCell(7).setCellValue(thisMonthNewMember);//本月新增会员数

            row = sheet.getRow(7);
            row.getCell(5).setCellValue(todayOrderNumber);//今日预约数
            row.getCell(7).setCellValue(todayVisitsNumber);//今日到诊数

            row = sheet.getRow(8);
            row.getCell(5).setCellValue(thisWeekOrderNumber);//本周预约数
            row.getCell(7).setCellValue(thisWeekVisitsNumber);//本周到诊数

            row = sheet.getRow(9);
            row.getCell(5).setCellValue(thisMonthOrderNumber);//本月预约数
            row.getCell(7).setCellValue(thisMonthVisitsNumber);//本月到诊数

            int rowNum = 12;
            for(Map map : hotSetmeal){//热门套餐
                String name = (String) map.get("name");
                Long setmeal_count = (Long) map.get("setmeal_count");
                BigDecimal proportion = (BigDecimal) map.get("proportion");
                row = sheet.getRow(rowNum ++);
                row.getCell(4).setCellValue(name);//套餐名称
                row.getCell(5).setCellValue(setmeal_count);//预约数量
                row.getCell(6).setCellValue(proportion.doubleValue());//占比
            }

            //使用输出流进行表格下载,基于浏览器作为客户端,不能new出对象,使用响应的response对象输出
            OutputStream out = response.getOutputStream();
            response.setContentType("application/vnd.ms-excel");//代表的是Excel文件类型
            response.setHeader("content-Disposition", "attachment;filename=report.xlsx");//指定以附件形式进行下载

            excel.write(out);

            out.flush();
            out.close();
            excel.close();

            return null;
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false,MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }
    }

    //导出运营数据到PDF文件并提供客户端下载
    @RequestMapping("/exportBusinessReport4PDF")
    public Result exportBusinessReport4PDF(HttpServletRequest request, HttpServletResponse response){
        try{
            Map<String,Object> result = reportService.getBusinessReportData();

            //取出返回结果数据，准备将报表数据写入到Excel文件中
            List<Map> hotSetmeal = (List<Map>) result.get("hotSetmeal");

            //动态获取pdf模板文件绝对磁盘路径,File.separator:分隔符
            String jrxmlPath = request.getSession().getServletContext().getRealPath("template") + File.separator + "health_business3.jrxml";
            String jasperPath = request.getSession().getServletContext().getRealPath("template") + File.separator + "health_business3.jasper";

            //编译模板
            JasperCompileManager.compileReportToFile(jrxmlPath, jasperPath);

            //填充数据---使用JavaBean数据源方式填充
            JasperPrint jasperPrint =
                    JasperFillManager.fillReport(jasperPath,result,
                            new JRBeanCollectionDataSource(hotSetmeal));

            //创建输出流，用于从服务器写数据到客户端浏览器
            ServletOutputStream out = response.getOutputStream();
            //指定下载文件格式
            response.setContentType("application/pdf");
            response.setHeader("content-Disposition", "attachment;filename=report.pdf");

            //输出文件
            JasperExportManager.exportReportToPdfStream(jasperPrint,out);

            out.flush();
            out.close();

            return null;
        }catch (Exception e){
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }
    }
}
